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Finding the Fourth Proportional to 123,841.13, 170,953.08 and 83,609.39

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Solution

The fourth proportional to 123,841.13, 170,953.08 and 83,609.39 is: 115,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,841.13 : 170,953.08 = 83,609.39 : x
  2. Step 2: Convert to fraction form
    123,841.13/170,953.08 = 83,609.39/x
  3. Step 3: Cross multiply
    123,841.13x = 170,953.08 × 83,609.39
  4. Step 4: Simplify right side
    123,841.13x = 14,293,282,737.42
  5. Step 5: Solve for x
    x = 14,293,282,737.42/123,841.13
  6. Step 6: Final answer
    x = 115,416.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.